Chelating N-pyrrolylphosphino-N′-arylaldimine ligands: synthesis, ligand behaviour and applications in catalysis
作者:Carly E. Anderson、Andrei S. Batsanov、Philip W. Dyer、John Fawcett、Judith A. K. Howard
DOI:10.1039/b611652c
日期:——
pyrrolylaldimines 2. The donor characteristics/basicity of P–N-chelating 3 and 4 have been assessed using a combination of 31P1H} NMR and IR spectroscopies through study of the magnitudes of 1JSeP for the phosphorus(V) selenides 7 and 8, and measurement of νCO for the complexes [RhCl(CO)(3,4-κ2-P,N)] (5, 6), respectively. The synthesis of the palladium(II) complexes [PdCl2(3,4-κ2-P,N)] (9, 10) was readily achieved
的各种取代的两个家庭Ñ -pyrrolylphosphino- Ñ '-arylaldimine配体,2-(芳基-N CH)C 4 H 3 N-PR 2 3a-d R = Ph; 图4a-d R =镨我2 N},已经从对应pyrrolylaldimines制备2。使用31 P 1 H}的组合评估了P – N螯合3和4的供体特征/基本性核磁共振和通过的大小的研究IR光谱1 Ĵ SEP为磷(V)硒化物7和8,和测量ν CO的配合物[的RhCl(CO)(3,4 -κ 2 - P,Ñ)](5,6),分别。钯(合成II)配合物[的PdCl 2(3,4 -κ 2 - P,Ñ)](9,103或4与[PdCl 2(MeCN)2 ]在CH 2 Cl 2中的反应很容易实现。13d和14b的X射线晶体学研究证实了P – N的螯合性质 配体,采用扭曲的“信封”构型,并突出显示了这些金属支架潜在的显着空间要求。的等摩尔量的反应3与[NIBR